User Story:
As a GreenGuardian CRM Director, I need the system to transfer open "Acquire Plants" tasks from a departing manager to the incoming manager, so that the new manager is informed of all outstanding tasks.

Acceptance Criteria:

• When a garden's manager is updated to reassign a manager, any task record that meets this criteria should also be reassigned
• Status: Not "Completed"
• OwnerId: The previous manager
• Subject: Acquire Plants
• WhatId: The garden's Id
  
  

Example Scenarios:

• When Lauren takes over for Michael as the manager of Evergreen Gardens, Michael's open task is reassigned to Lauren
• When Adam takes over for Steven, Steven's completed task remains assigned to Steven.